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KADK UN Thesis Award 2019
Solar-Roasted Chicken — Master Thesis 2019











Solar-Roasted Chicken

The project started with Sila Sutharat, who uses the pixelated-concave-mirror panels to gathered sunlight and cook food for over 20 years. My project is looking into Thai neo-vernacular space, which appears in his vendor restaurant. Then applied the adaptive mechanism of objects and architecture and their relation with sunlight into the design.

Sila, a 60 years old vendor restaurant owner, grilled meat using sunlight power solely. With 4th-grade education background, he invented reflective sun panels made of 1000 small mirror planes. Before he came up with this idea, he used charcoal to cook his food like others. Having his restaurant next to the road, one day in 1997, he got flashes of heat from the passing-by buses’ sunlight reflection. Sila, then, raised the question of whether this heat can transform into energy.

He has been cooking with sunlight since.






Sila’s Solar Roasted Chicken






Site Drawings




Sila's food preparation area looks somehow chaotic, filled with many objects that seem unorganized. However, this space has been adapted through its user experience. It has been undergoing several rearrangements. Since all furniture is light, it’s easier for the owner to do trial and error readjusting.

Space has its rhythm and workflow that the user would feel comfortable following this working station.

It’s kitchen combined with washing space, even a garage. A motorcycle parked here belongs to Sila. He couldn’t park outside because there's no shade for his bike, and this space seems to be empty. So - why not?


Even though they feel very comfortable in their working space, I still think there’s a way to organize this space.

Using  "Frankfurt Kitchen Motion Mapping method”  to registered and analyzed movement, I could understand the space. Then, adding some implementation to re-align this space.
































In Thailand, the color cloud locates and identify places instead of house address.

I’ll use a color-coding system in the implementation of food production space.

For the user to learn or memorize where to place objects, or communicate with the new user. the owner can simply say...


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“put that box on the orange table”
“place that dish on the blue table"
"you can sit on the yellow bench"













I study the sun allocation yearly and daily by looking into how the existing building cast shadow. It allows me to learn direction and route for the panel and the receiver, or where to place the building that will not block the sun to the roasting area. This route will cast designed pavement for the panels and the receivers to move around easier.














  • Time is the changing of sunlight throughout the day.
  • Objects are the panels and the receivers.
  • Architecture is the building’s awning, where the building is situated, and the pavement.


The diagram shows space’s changing state throughout the day, how the panels and the receivers react to sun allocation, how the pavement guides their movement, how the awning facade is trying to cast a shadow for people inside.